Altering lie affects swing weight?

Altering lie affects swing weight?

Having a discussion about some irons - MP18SC ordered standard lie but +1/2" Project x 6.0...turned up D3 really nice but will be probably in need of making them more upright....ordered the matching MP18 5 Fli-Hi and having issues with my order...came in at D6-7...part of the explanation maybe that as this was ordered +1 degree upright that affects swing weight!?...more than likely a standard head weight was used but interested to know what changing lie does for an iron?

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Re: Altering lie affects swing weight?

Upright lie angles move the toe slightly closer to the hands and reduce swing weight, but the effect should be relatively small. A 1* lie angle change should only move the club's CG by a tiny amount (about 3/100ths of an inch by rough calculation). Your 1/2" increase in shaft length would have had a much bigger impact on swing weight than a lie angle adjustment.